Herbicidal composition comprising cinmethylin and specific inhibitors of protoporphyrinogen oxidase

Patent metadata

Field	Value
Publication number	US-11219215-B2
Application number	US-201916361273-A
Country	US
Kind code	B2
Filing date	Mar 22, 2019
Priority date	Jul 10, 2015
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

The present invention relates to a herbicidal composition comprising specific inhibitors of protoporphyrinogen oxidase (PPO inhibitors) selected from flumioxazin and sulfentrazone. The invention also relates to methods and uses for controlling undesirable vegetation, in particular in crops.

First claim

The invention claimed is:

1. A herbicidal composition comprising a herbicidally effective amount of (a) (±)-2-exo-(2-Methylbenzyloxy)-1-methyl-4-isopropyl-7-oxabicyclo[2.2.1]heptane, any of its individual enantiomers or any non-racemic mixture thereof (herbicide A) and (b) at least one inhibitor of protoporphyrinogen oxidase (PPO inhibitor) selected from flumioxazin (B.1) and sulfentrazone (B.2) (herbicide B), wherein the weight ratio of herbicide A to herbicide B is from 1:0.005 to 1:36.

2. The composition claim 1 , wherein the herbicide A is (±)-2-exo-(2-Methylbenzyloxy)-1-methyl-4-isopropyl-7-oxabicyclo[2.2.1]heptane.

3. The composition of claim 1 , wherein the herbicide A and herbicide B are each present in an amount sufficient to provide a synergistic herbicidal effect.

4. The composition of claim 1 , further comprising at least one safener D selected from the group consisting of benoxacor (D.1), cloquintocet (D.2), cyometrinil (D.3), cyprosulfamide (D.4), dichlormid (D.5), dicyclonon (D.6), dietholate (D.7), fenchlorazole (D.8), fenclorim (D.9), flurazole (D.10), fluxofenim (D.11), furilazole (D.12), isoxadifen (D.13), mefenpyr (D.14), mephenate (D.15), naphthaleneacetic acid (D.16), naphthalic anhydride (D.17), oxabetrinil (D.18), 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane (MON4660, CAS 71526-07-3) (D.19), 2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine (R-29148, CAS 52836-31-4) (D.20), N-(2-Methoxybenzoyl)-4-[(nnethylanninocarbonypannino]benzenesulfonamide (CAS 129531-12-0) (D.21), and agriculturally acceptable salts, esters or amides thereof.

5. The composition of claim 1 , further comprising one or more auxiliaries customary in crop protection.

6. The composition of claim 1 , wherein the at least one inhibitor of protoporphyrinogen oxidase (PPO inhibitor) comprises flumioxazin (B.1).

7. The composition of claim 1 , wherein at least one inhibitor of protoporphyrinogen oxidase (PPO inhibitor) comprises sulfentrazone (B.2).

8. A method for controlling undesirable vegetation which comprises applying to the vegetation or the locus thereof or applying to the soil or water to control the emergence or growth of the undesirable vegetation the composition of claim 1 .

9. The method of claim 8 , wherein the undesirable vegetation is controlled in crop plants selected from wheat, barley, rye, triticale, oat, corn (maize), sunflower, rice, soybeans, peas, Vicia -beans, Phaseolus -beans, peanuts, oilseed rape, canola, cotton, potato, sugarbeet, sugarcane, turfgrasses and vegetables.

10. The method of claim 8 , wherein the undesirable vegetation is selected from the genera Agropyron, Alopecurus, Apera, Avena, Brachiaria, Bromus, Cynodon, Digitaria, Echinochloa, Eleusine, Ischaemum, Leptochloa, Lolium, Panicum, Phalaris, Poa, Rottboellia, Setaria, Sorghum, Abutilon, Anthemis, Amaranthus, Ambrosia, Capsella, Centaurea, Chenopodium, Conyza, Descurainia, Galium, Kochia, Matricaria, Papaver, Polygonum, Raphanus, Sinapis, Sisymbrium, Stellaria and Thlaspia.

11. The method of claim 8 , wherein the undesirable vegetation is a herbicide resistant or tolerant weed species.

12. The method of claim 8 , wherein the herbicide A is applied in an amount of from 10 to 1000 g/ha.

13. The method of claim 8 , wherein the herbicide B is applied in an amount of from 1 to 3600 g/ha.

14. The method of claim 8 , wherein the herbicide A is (±)-2-exo-(2-Methylbenzyloxy)-1-methyl-4-isopropyl-7-oxabicyclo[2.2.1]heptane.

15. The method of claim 8 , wherein the herbicide A and herbicide B are each present in an amount sufficient to provide a synergistic herbicidal effect.

16. The method of claim 8 , wherein the composition further comprises at least one safener D selected from the group consisting of benoxacor (D.1), cloquintocet (D.2), cyometrinil (D.3), cyprosulfamide (D.4), dichlormid (D.5), dicyclonon (D.6), dietholate (D.7), fenchlorazole (D.8), fenclorim (D.9), flurazole (D.10), fluxofenim (D.11), furilazole (D.12), isoxadifen (D.13), mefenpyr (D.14), mephenate (D.15), naphthaleneacetic acid (D.16), naphthalic anhydride (D.17), oxabetrinil (D.18), 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane (MON4660, CAS 71526-07-3) (D.19), 2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine (R-29148, CAS 5283631-4) (D.20), N-(2-Methoxybenzoyl)-4-[(nnethylanninocarbonypannino]benzenesulfonamide (CAS 129531-12-0) (D.21), and agriculturally acceptable salts, esters or amides thereof.

17. The method of claim 8 , wherein the at least one inhibitor of protoporphyrinogen oxidase (PPO inhibitor) comprises flumioxazin (B.1).

18. The method of claim 8 , wherein at least one inhibitor of protoporphyrinogen oxidase (PPO inhibitor) comprises sulfentrazone (B.2).

Assignees

• Basf Agro Bv

Inventors

• Kraus Helmut
• Sievernich Bernd
• Etcheverry Mariano
• Evans Richard R
• Nielson Ryan Louis
• Zagar Cyrill
• Liebl Rex A

Classifications

• A01N43/90 Primary

  having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system · CPC title

• A01N43/84

  six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4 · CPC title

• A01N43/653

  1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles · CPC title

• A01N2300/00

  Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48 · CPC title